Library of Congress

The Library of Congress is the largest library in the world, with millions of books, films and video, audio recordings, photographs, newspapers, maps, and manuscripts in its collections. The Library is the main research arm of the US Congress and the home of the US Copyright Office. Explore collections, reference services and other programs and plan a visit at loc.gov; access the official site for U.S. federal legislative information at congress.gov; and register creative works of authorship at copyright.gov.